diff --git a/README.md b/README.md
index ccf9b22..d4d9092 100644
--- a/README.md
+++ b/README.md
@@ -7,6 +7,6 @@ the need to parse `ub_result.data` yourself.
 
 The website for Unbound is https://unbound.net/, were you can find further documentation.
 
-Tested/compiled to work for versions: 1.4.19, 1.4.20, 1.4.21.
+Tested/compiled to work for versions: 1.4.22
 
 Note: using cgo means the executables will use shared libraries (for OpenSSL, ldns and libunbound).
diff --git a/tutorial6/example.go b/tutorial6/example.go
index 47b84f5..bb0ec94 100644
--- a/tutorial6/example.go
+++ b/tutorial6/example.go
@@ -21,11 +21,11 @@ func main() {
 		log.Fatalf("error %s\n", err.Error())
 	}
 
-	if err := u.AddTaFile("keys"); err != nil {
+	if err := u.AddTaFile("skydns.keys"); err != nil {
 		log.Fatalf("error %s\n", err.Error())
 	}
 
-	r, err := u.Resolve("nlnetlabs.nl.", dns.TypeA, dns.ClassINET)
+	r, err := u.Resolve("server2.miek.skydns.dnssex.nl.", dns.TypeA, dns.ClassINET)
 	if err != nil {
 		log.Fatalf("error %s\n", err.Error())
 	}
diff --git a/unbound.go b/unbound.go
index f188a21..c032d4d 100644
--- a/unbound.go
+++ b/unbound.go
@@ -63,7 +63,7 @@ import (
 )
 
 type Unbound struct {
-	ctx     *C.struct_ctx
+	ctx     *C.struct_ub_ctx
 	version [3]int
 }